In a computer system, methods and computer-readable medium are disclosed
for tracking motion of a subject in an activity captured by camera. The
camera supplies pluralities of discrete images of the subject to a
computing system environment. An event window, displayed on a monitor, has
at least two cells for receiving a user input pertaining to an action of
the subject in the activity. In a first of the two cells, the user
indicates a specific image number corresponding to one of the plurality of
discrete images and an estimate of a fractional percent thereof. In the
second cell, the user indicates another specific image number and estimate
of a fractional percentage thereof. Software calculates a delta between
the specific image numbers and their corresponding estimated fractions.
Scroll and position bars provide user-aid for navigating between discrete
images. Example subjects include horses in a horse race activity while an
action includes a horse stride length.
